A sex pest who sent indecent photos to three top television soap actresses may face jail.

Pervert David Watson, 74, superimposed the stars’ heads on pictures of naked women and posted the images to their homes – leaving the three “shocked”, a court heard.

The “bored” pensioner also included vile messages in the letters to Coronations Street’s Kym Marsh and Jennie McAlpine plus Emmerdale’s Natalie Robb.

Prosecutor Matthew Treece told Manchester magistrates court that Kym, 37, was the first victim on October 18 last year, receiving a handwritten envelope marked “personal”.

She asked her father to open the letter and he found a picture that had been edited to include an image of her face on the body of a different woman exposing her breasts.

Kym, who plays Corrie’s Michelle Connor, said the incident had left her “feeling sick and shocked”. Five days later, 30-year-old Jennie got a similar letter with a vulgar note on the photo.

She received a second letter containing the same image as the first. This time Watson wrote: “Jenny, I would love to see you like this.”

He followed the comment with a crude message and kisses.

Jennie, who plays Fiz Stape in the Street, said the letters left her feeling scared, adding: “I have now improved security at my home with additional locks – it was degrading.”

On November 2, a fourth letter with a picture was received by Natalie, 39. Her face had been put on the body of a woman showing her breasts.

Natalie, who plays Moira Barton in the Yorkshire soap, said: “It crossed my mind I may have a stalker.” James Street, defending, said Watson, of Daventry, Northampton, had never previously been in trouble.

Mr Street added: “He said he had been bored but I think there is something more behind this. Something has been going on.”

The court heard Watson got the addresses through an internet company for a fee. But police used the company to track him down. Watson, who admitted four counts of sending indecent images for the purposes of causing harassment, distress and anxiety, will be sentenced on March 12. He was bailed after JPs asked for an all-option report, including custody.